Two cases have wrong ans

help me out in finding which cases are not considered by me.

instead of storing c, r
in pair
store c-r , c+r
which define start and end
then the sort function works better
refer to udpated code

oh thanks.I got that.

I hope I’ve cleared your doubt. I ask you to please rate your experience here
Your feedback is very important. It helps us improve our platform and hence provide you
the learning experience you deserve.

On the off chance, you still have some questions or not find the answers satisfactory, you may reopen
the doubt.